CN110761794A - Shaft heading machine and propulsion system thereof - Google Patents
Shaft heading machine and propulsion system thereof Download PDFInfo
- Publication number
- CN110761794A CN110761794A CN201911362517.4A CN201911362517A CN110761794A CN 110761794 A CN110761794 A CN 110761794A CN 201911362517 A CN201911362517 A CN 201911362517A CN 110761794 A CN110761794 A CN 110761794A
- Authority
- CN
- China
- Prior art keywords
- propulsion
- machine
- lifting device
- steel strand
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/08—Sinking shafts while moving the lining downwards
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
Abstract
The invention discloses a shaft boring machine and a propulsion system thereof, wherein the propulsion system comprises a main support frame and a control system, the main support frame can be erected on a shaft, the main support frame is provided with a propulsion oil cylinder for downwards pushing the whole boring machine to move and a lifting device for controlling the take-up and pay-off of steel strands, and the lower ends of the steel strands are connected with the whole boring machine in the shaft; the control system is used for controlling the actions of the propulsion oil cylinder and the lifting device during propulsion operation so that the paying-off speed of the steel strand and the extension speed of the propulsion oil cylinder are both the constant preset tunneling speed. The propulsion system provided by the application adopts a mode that the lifting device and the propulsion oil cylinder work in a coordinated mode, the lifting device vertically lifts the whole machine of the heading machine on the well through the steel strand, the propulsion oil cylinder provides counter-force to propel the whole machine of the heading machine through the main support frame, the influence of the weight of the whole machine of the heading machine and the self weight of a support structure is eliminated, the control of the driving force and the driving speed of shaft tunneling and the posture of the whole machine are realized, and the construction efficiency and the equipment safety are ensured.
Description
Technical Field
The invention relates to the technical field of shaft construction, in particular to a propulsion system. The invention also relates to a shaft boring machine comprising the propulsion system.
Background
Shaft engineering is widely applied to the development field of underground space, and the manual excavation form that mechanical degree of automation is lower is more general, and along with the rapid development of trade, shaft entry driving machine that each type degree of mechanization and work efficiency are high constantly appears.
The whole machine propulsion process control of the heading machine is an important technical part in the shaft heading machine, the existing shaft propulsion system has a single action form, and the whole machine of the heading machine actively propels under the action of self gravity and the thrust of an oil cylinder. During actual construction, the whole heading machine and the supporting structure are heavy and are influenced by the weight, the propelling force and the speed of the vertical shaft propelling system are difficult to control, and meanwhile, the equipment loss is large and a large safety risk exists.
In summary, how to control the propelling force and the propelling speed of the heading machine is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a propulsion system, which adopts a working mode of cooperative operation of a lifting device and a propulsion cylinder, and can control a propulsion force and a propulsion speed in a whole machine propulsion process of a heading machine, so as to avoid influence of the whole machine of the heading machine and a supporting structure on the heading process and the system stability, and improve the construction efficiency and the safety factor. It is a further object of the present invention to provide a shaft boring machine including the above propulsion system.
In order to achieve the above purpose, the invention provides the following technical scheme:
a propulsion system, comprising:
the main support frame can be erected on the vertical shaft, the main support frame is provided with a propulsion oil cylinder and a lifting device, the propulsion oil cylinder pushes the whole development machine downwards to move through a supporting structure, the lifting device is used for controlling the steel strand take-up and pay-off wires, and the lower ends of the steel strands are connected with the whole development machine in the vertical shaft;
the control system is used for controlling the propulsion oil cylinder and the lifting device to act during propulsion operation so that the paying-off speed of the steel strand and the extension speed of the propulsion oil cylinder are the preset tunneling speed at a constant speed.
Preferably, the main support frame comprises a vertical beam standing on the ground and a cross beam arranged at the top of the vertical beam, the top of the propulsion cylinder is fixedly connected with the bottom of the cross beam, and the lifting device is arranged at the top of the cross beam.
Preferably, the number of the propulsion oil cylinders is multiple, the propulsion oil cylinders are uniformly distributed on the periphery of a preset axis extending in the vertical direction, and the preset axis is collinear with a central shaft of the vertical shaft.
Preferably, the number of the lifting devices is at least two, and the steel strands are connected with the lifting devices in a one-to-one correspondence mode.
Preferably, the lifting device comprises a winding drum for winding the steel strand and a driving mechanism for controlling the rotation of the winding drum.
Preferably, the lifting device further comprises an anchor for anchoring and releasing the steel strand.
A shaft heading machine comprises a heading machine complete machine and any one of the propulsion systems.
The propulsion system provided by the invention comprises a main supporting frame, a propulsion oil cylinder, a lifting device, a steel strand and a control system; the main support frame can be erected above the vertical shaft, the propelling oil cylinder is arranged on the main support frame and used for pushing the whole heading machine downwards to move through the supporting structure, the lower end of the steel strand is connected with the whole heading machine, and the lifting device is arranged on the main support frame and used for controlling the take-up and pay-off of the steel strand. The propulsion oil cylinder and the lifting device are respectively and electrically connected with the control system.
During the propelling operation, the control system controls the propelling oil cylinder and the lifting device to act, so that the paying-off speed of the steel strand is equal to the extension speed of the propelling oil cylinder, and the steel strand is kept in a constant speed state. In the process, the steel strand keeps a tensioned state, the lifting device vertically pulls the whole tunneling machine through the steel strand, and the lifting device controls the steel strand to be lowered at a preset tunneling speed, so that the tension of the steel strand can balance the gravity of the whole tunneling machine and the supporting structure; meanwhile, the propulsion oil cylinder extends, and the supporting structure is pushed by the counter force provided by the main supporting frame, so that the whole heading machine can heading downwards at a preset heading speed at a constant speed along with the extension of the propulsion oil cylinder. Because the gravity of the whole heading machine and the supporting structure is borne by the steel strand, the propelling oil cylinder can easily control the heading speed and the heading force of the whole heading machine.
The application also provides a shaft heading machine, which has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a propulsion system.
The reference numerals in fig. 1 are: 1-lifting device, 2-main support frame, 3-propulsion oil cylinder, 4-steel strand, 5-whole heading machine and 6-support structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present application provides a propulsion system comprising a main support frame 2 and a control system. The main support frame 2 can be erected on a vertical shaft, the main support frame 2 is provided with a propulsion oil cylinder 3 and a lifting device 1, the propulsion oil cylinder is used for pushing a heading machine complete machine 5 downwards to move through a supporting structure, the lifting device is used for controlling the steel strand 4 to take up and pay off, and the lower end of the steel strand 4 is connected with the heading machine complete machine 5 located in the vertical shaft. The control system is used for controlling the propulsion oil cylinder 3 and the lifting device 1 to act during propulsion operation so that the paying-off speed of the steel strand 4 and the extension speed of the propulsion oil cylinder 3 are both constant preset tunneling speeds; the propulsion oil cylinder 3 and the lifting device 1 are respectively and electrically connected with a control system.
Specifically, in the process of constructing the shaft, the heading machine 5 needs to perform a heading operation from the ground downward, a shaft is manufactured, and a support structure 6 is added to the side wall of the shaft in the heading process.
The main support frame 2 is fixed to the ground and it is located above the shaft under construction. The specific structure of the main support frame 2 can be selected in various ways, and can be stably fixed on the ground, and meanwhile, the propulsion oil cylinder 3 and the lifting device 1 can be fixed.
The propulsion oil cylinder 3 is fixed on the main support frame 2 and is positioned above the heading machine complete machine 5 and the supporting structure 6, and a piston rod of the propulsion oil cylinder can push the supporting structure 6 downwards through the counter force provided by the main support frame 2 after being stretched, so that the heading machine complete machine 5 is controlled to heading downwards. In actual operation, the propulsion cylinder 3 can apply thrust to the supporting structure 6 through the supporting shoes, and the extension speed of the propulsion cylinder 3 can be controlled through the cylinder pressure.
The lower end of the steel strand 4 is fixed with the whole heading machine 5 and keeps a tensioned state during working. The lifting device 1 can control the take-up and pay-off of the steel strand 4, and the lowering length of the steel strand 4 is adjusted, namely the length of the steel strand 4 between the lifting device 1 and the whole heading machine 5 is adjusted.
During the propelling operation, the lifting device 1 vertically pulls the whole heading machine 5 through the steel strand 4, the whole heading machine 5 performs uniform heading at a preset heading speed, and meanwhile, the lifting device 1 controls the steel strand 4 to be lowered at the preset heading speed, so that the lifting device 1 and the steel strand 4 can balance the gravity of the whole heading machine 5. Meanwhile, the propulsion oil cylinder 3 controls the piston rod to extend out at a preset tunneling speed and pushes the whole tunneling machine 5 to move downwards through the supporting structure 6. Because the gravity of the whole heading machine 5 and the supporting structure 6 is borne by the steel strand 4, the driving oil cylinder 3 can easily control the heading speed and the heading force of the whole heading machine 5.
The propulsion system provided by the application adopts a mode that the lifting device 1 and the propulsion oil cylinder 3 work cooperatively, the lifting device 1 vertically lifts the whole excavator 5 through the steel strand 4 on the well, and the influence of the gravity of the whole excavator 5 and the self gravity of the supporting structure 6 is eliminated; the propulsion oil cylinder 3 provides counter force to propel the whole heading machine 5 through the main support frame 2, so that the control of the driving force and the driving speed of shaft heading is realized, and the construction efficiency and the equipment safety are ensured.
It can be understood that in the actual construction process, a hole with a certain depth needs to be dug on the ground, and the whole heading machine 5 is placed in the hole. Therefore, before the heading machine 5 performs heading, the heading machine 5 needs to be lowered to a required position, and in the process, the propulsion cylinder 3 does not need to work, and the steel strand 4 is lowered at a constant speed through the lifting device 1.
Optionally, in an embodiment provided by the present application, the main support frame 2 includes a vertical beam standing on the ground and a cross beam disposed at the top of the vertical beam, the top of the thrust cylinder 3 is fixedly connected with the bottom of the cross beam, and the lifting device 1 is disposed at the top of the cross beam. Specifically, the lifting device 1 is installed at the four corners of the middle of the cross beam, the cross beam plays a role in fixing the propulsion oil cylinder 3 and the lifting device 1, and the vertical beam supports the cross beam at a certain height, so that an installation space is provided for the propulsion oil cylinder 3. During actual design, the position of the steel strand 4 needs to be set according to actual needs, and the steel strand 4 can be hung on the outer side of the beam or a dodging hole for the steel strand 4 to pass through is formed in the beam.
Further, in order to optimize the propelling effect of the propelling cylinders 3 on the whole heading machine 5, in an embodiment provided by the application, the propelling cylinders 3 are multiple, and the multiple propelling cylinders 3 are uniformly distributed on the periphery of a preset axis extending in the vertical direction. Specifically, in the state of complete assembly, the preset axis is collinear with the central shaft of the vertical shaft, that is, the plurality of thrust cylinders 3 are distributed at the top of the whole heading machine 5 and are uniformly distributed along the circumferential direction of the vertical shaft, so that the whole heading machine 5 is uniformly pushed to move, and the whole heading machine 5 is uniformly stressed.
Optionally, in an embodiment provided by the present application, there are at least two lifting devices 1, and the steel strands 4 are connected to the lifting devices 1 in a one-to-one correspondence manner. Specifically, the lifting devices 1 are symmetrically distributed on two sides of the preset axis, so that the stress stability of the whole heading machine 5 is improved. In addition, the posture of the whole heading machine 5 can be adjusted when at least two lifting devices 1 are provided. For example, during vertical tunneling, the lowering lengths of the steel strands 4 are consistent; when the heading direction of the heading machine complete machine 5 needs to be adjusted, the lowering lengths of the steel strands 4 are unequal, and the heading machine complete machine 5 can turn to the side where the steel strand 4 with the short length is located.
Further, on the basis of any of the above-described embodiments, the lifting device 1 includes a drum around which the steel strand 4 is wound and a driving mechanism for controlling the rotation of the drum. Specifically, the steel strand 4 is wound on a winding drum, and the winding drum rotates to realize the winding and unwinding of the steel strand 4. The drive mechanism may employ hydraulic or other drive means to control the rotation of the drum. When the steel strand paying-off device works, the control system controls the driving mechanism to act, the pressure of an oil cylinder of the driving mechanism is kept constant, and the winding drum rotates at a constant speed, so that the effect of paying off the steel strand 4 at a constant speed is achieved.
Optionally, in an embodiment provided by the present application, the lifting device 1 further comprises an anchor for anchoring and releasing the steel strand 4. Specifically, the lifting device 1 can be provided with two anchors, the upper anchors always anchor the steel strand 4, and the stable connection between the end of the steel strand 4 and the winding drum is ensured; the anchorage device at the lower end is positioned between the winding drum and the heading machine complete machine 5, the working states of anchoring and loosening can be switched according to requirements, and the steel strand 4 is loosened by the anchorage device at the lower end in the process of lowering or heading the heading machine complete machine 5, so that the steel strand 4 can be freely wound and unwound.
In addition to the above described propulsion system, the present invention also provides a shaft boring machine comprising a boring machine complete machine 5 and any one of the above described propulsion systems. The structure of other parts of the shaft heading machine refers to the prior art, and is not described in detail herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The shaft boring machine and the propulsion system thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A propulsion system, comprising:
the main support frame (2) can be erected on a vertical shaft, the main support frame (2) is provided with a propulsion oil cylinder (3) which downwards pushes a whole heading machine (5) to move through a supporting structure (6) and a lifting device (1) for controlling a steel strand (4) to take up and pay off, and the lower end of the steel strand (4) is connected with the whole heading machine (5) in the vertical shaft;
the control system, propulsion cylinder (3), hoisting device (1) respectively with the control system electricity is connected, control system is used for controlling propulsion cylinder (3) and hoisting device (1) action when the propulsion operation, so that the unwrapping wire speed of steel strand wires (4) with the extension speed of propulsion cylinder (3) is the preset tunnelling speed at the uniform velocity.
2. A propulsion system according to claim 1, characterised in that the main support frame (2) comprises a vertical beam standing on the ground and a transverse beam arranged on top of the vertical beam, the top of the propulsion cylinder (3) being fixedly connected to the bottom of the transverse beam, and the lifting device (1) being arranged on top of the transverse beam.
3. A propulsion system according to claim 2, characterised in that there are a plurality of said propulsion cylinders (3), and that said plurality of said propulsion cylinders (3) are uniformly distributed around a predetermined axis extending in the vertical direction, said predetermined axis being collinear with the central axis of the shaft.
4. A propulsion system according to claim 2, characterised in that there are at least two of said lifting devices (1), and that said steel strands (4) are connected in a one-to-one correspondence with said lifting devices (1).
5. A propulsion system according to any one of claims 1 to 4, characterised in that the lifting device (1) comprises a drum on which the steel strand (4) is wound and a drive mechanism controlling the rotation of the drum.
6. A propulsion system according to claim 5, characterised in that the lifting device (1) further comprises an anchorage for anchoring and releasing the steel strands (4).
7. A shaft boring machine comprising a boring machine (5), characterized by a propulsion system according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362517.4A CN110761794B (en) | 2019-12-26 | 2019-12-26 | Shaft heading machine and propulsion system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362517.4A CN110761794B (en) | 2019-12-26 | 2019-12-26 | Shaft heading machine and propulsion system thereof |
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| Publication Number | Publication Date |
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| CN110761794A true CN110761794A (en) | 2020-02-07 |
| CN110761794B CN110761794B (en) | 2020-04-03 |
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| CN201911362517.4A Active CN110761794B (en) | 2019-12-26 | 2019-12-26 | Shaft heading machine and propulsion system thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206931A (en) * | 2020-04-20 | 2020-05-29 | 中国铁建重工集团股份有限公司 | Cantilever shaft heading machine |
| CN111622763A (en) * | 2020-04-23 | 2020-09-04 | 中国铁建重工集团股份有限公司 | Direction adjusting control method and system for vertical shaft heading machine, vertical shaft heading machine and storage medium |
| CN111764905A (en) * | 2020-07-09 | 2020-10-13 | 中国水利水电夹江水工机械有限公司 | Anti-twisting method for shaft tunneling |
| CN112228088A (en) * | 2020-12-14 | 2021-01-15 | 北京建工土木工程有限公司 | Construction method of vertical shaft starting device for top-down pipe jacking construction in shield tunnel |
| CN112554883A (en) * | 2020-12-08 | 2021-03-26 | 中国铁建重工集团股份有限公司 | Shaft tunneling equipment, tunneling power system and control method |
| CN112557079A (en) * | 2020-12-08 | 2021-03-26 | 中国铁建重工集团股份有限公司 | Simulation test platform for vertical shaft heading machine propulsion system |
| CN113202478A (en) * | 2021-06-08 | 2021-08-03 | 中国铁建重工集团股份有限公司 | Step-changing tunneling method of vertical shaft tunneling machine and tunneling machine |
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Cited By (8)
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| CN112557079A (en) * | 2020-12-08 | 2021-03-26 | 中国铁建重工集团股份有限公司 | Simulation test platform for vertical shaft heading machine propulsion system |
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| CN113202478A (en) * | 2021-06-08 | 2021-08-03 | 中国铁建重工集团股份有限公司 | Step-changing tunneling method of vertical shaft tunneling machine and tunneling machine |
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